Dynamical Mean Field Theory Study of the Linear and Nonlinear Optics of Kondo Systems
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We study linear and nonlinear optical properties of <I>d</I>-electron Kondo system. The effect of Kondo resonance in optical conductivity is to creat a remarkable peak inside the gap. In third harmonic generation spectra also there appear structures inside the gap which correspond to three and two-photon processes from lower Hubbard band to the Kondo resonance state. Behavior of two and four-current correlations near to ν≈0 in Kondo regime can be understood by an asymptotic analysis which reveals a marked difference between two and four-current correlations.
- Journal of the Physical Society of Japan
Journal of the Physical Society of Japan 76(4), 044706-044706, 2007
THE PHYSICAL SOCIETY OF JAPAN